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United States Patent | 5,343,637 |
Schindler | September 6, 1994 |
A shoe having an outer sole, an upper attached to the outer sole for enclosing the wearer's foot, and an insole. A compressible and expansible elastic insert is accommodated in a cavity between the outer sole and the insole. The elastic insert has a flat body formed of spring material. Projecting out of the plane of the body is a spiraling, tapering leaf which elastically deflects in response to relative movements of the outer sole and the insole toward and away from one another.
Inventors: | Schindler; Jerry (757 Spartan Dr., Rochester Hills, MI 48063) |
Appl. No.: | 933885 |
Filed: | August 21, 1992 |
Current U.S. Class: | 36/28; 36/7.8; 36/27; 36/38 |
Intern'l Class: | A43B 013/18; A43B 013/28 |
Field of Search: | 36/28,27,7.8,37,38 267/161,166.1,181,163,158,159,166 |
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Foreign Patent Documents | |||
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